src/cocoa/checkbox.mm

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/cocoa/checkbox.mm
   3 // Purpose:     wxCheckBox
   4 // Author:      David Elliott
   5 // Modified by:
   6 // Created:     2003/03/16
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2003 David Elliott
   9 // Licence:     wxWidgets licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13
  14 #if wxUSE_CHECKBOX
  15
  16 #include "wx/checkbox.h"
  17
  18 #ifndef WX_PRECOMP
  19     #include "wx/log.h"
  20     #include "wx/app.h"
  21 #endif //WX_PRECOMP
  22
  23 #include "wx/cocoa/autorelease.h"
  24 #include "wx/cocoa/string.h"
  25
  26 #import <AppKit/NSButton.h>
  27 #import <Foundation/NSString.h>
  28
  29 IMPLEMENT_DYNAMIC_CLASS(wxCheckBox, wxControl)
  30 BEGIN_EVENT_TABLE(wxCheckBox, wxCheckBoxBase)
  31 END_EVENT_TABLE()
  32 WX_IMPLEMENT_COCOA_OWNER(wxCheckBox,NSButton,NSControl,NSView)
  33
  34 bool wxCheckBox::Create(wxWindow *parent, wxWindowID winid,
  35            const wxString& label,
  36            const wxPoint& pos,
  37            const wxSize& size,
  38            long style,
  39            const wxValidator& validator,
  40            const wxString& name)
  41 {
  42     wxAutoNSAutoreleasePool pool;
  43     if(!CreateControl(parent,winid,pos,size,style,validator,name))
  44         return false;
  45     m_cocoaNSView = NULL;
  46     SetNSButton([[NSButton alloc] initWithFrame: MakeDefaultNSRect(size)]);
  47     [m_cocoaNSView release];
  48     [GetNSButton() setButtonType: NSSwitchButton];
  49     [GetNSButton() setAllowsMixedState: Is3State()];
  50     [GetNSButton() setTitle:wxNSStringWithWxString(GetLabelText(label))];
  51     [GetNSControl() sizeToFit];
  52
  53     if(m_parent)
  54         m_parent->CocoaAddChild(this);
  55     SetInitialFrameRect(pos,size);
  56
  57     return true;
  58 }
  59
  60 wxCheckBox::~wxCheckBox()
  61 {
  62     DisassociateNSButton(GetNSButton());
  63 }
  64
  65 void wxCheckBox::SetValue(bool value)
  66 {
  67     [GetNSButton() setState: value?NSOnState:NSOffState];
  68 }
  69
  70 void wxCheckBox::DoSet3StateValue(wxCheckBoxState state)
  71 {
  72     int cocoaState;
  73     switch(state)
  74     {
  75     case wxCHK_UNCHECKED:
  76         cocoaState = NSOffState;
  77         break;
  78     case wxCHK_CHECKED:
  79         cocoaState = NSOnState;
  80         break;
  81     case wxCHK_UNDETERMINED:
  82         // Base class would have already set state to wxCHK_UNCHECKED
  83 //        wxASSERT_MSG(Is3State(),"Use the wxCHK_3STATE style flag");
  84         cocoaState = NSMixedState;
  85         break;
  86     default:
  87         wxFAIL_MSG(wxT("Invalid state in wxCheckBox::DoSet3StateValue"));
  88         return;
  89     }
  90     [GetNSButton() setState:cocoaState];
  91 }
  92
  93 bool wxCheckBox::GetValue() const
  94 {
  95     int state = [GetNSButton() state];
  96     wxASSERT_MSG(state!=NSMixedState || Is3State(),
  97         wxT("NSMixedState returned from a 2-state checkbox"));
  98     return state!=NSOffState;
  99 }
 100
 101 wxCheckBoxState wxCheckBox::DoGet3StateValue() const
 102 {
 103     switch([GetNSButton() state])
 104     {
 105     case NSOffState:
 106         return wxCHK_UNCHECKED;
 107     case NSOnState:
 108         return wxCHK_CHECKED;
 109     default:
 110         wxFAIL_MSG(wxT("[NSButton -state] returned an invalid state!"));
 111     case NSMixedState:
 112         // Base class handles this assertion for us
 113 //        wxASSERT_MSG(Is3State(),wxT("NSMixedState returned from a 2-state checkbox"));
 114         return wxCHK_UNDETERMINED;
 115     }
 116 }
 117
 118 void wxCheckBox::Cocoa_wxNSButtonAction(void)
 119 {
 120     wxLogTrace(wxTRACE_COCOA,wxT("Checkbox"));
 121     // What we really want to do is override [NSCell -nextState] to return
 122     // NSOnState in lieu of NSMixedState but this works (aside from the
 123     // very slightly noticeable drawing of - and then a check) -DE
 124
 125     // Cocoa always allows a 3-state button to transition into
 126     // the mixed/undetermined state by clicking, we don't
 127     if ( !Is3rdStateAllowedForUser()
 128          && [GetNSButton() state] == NSMixedState )
 129     {
 130         // Cocoa's sequence is on/off/mixed
 131         // skip mixed, go right back to on
 132         [GetNSButton() setState: NSOnState];
 133     }
 134     wxCommandEvent event(wxEVT_COMMAND_CHECKBOX_CLICKED, GetId());
 135     InitCommandEvent(event); //    event.SetEventObject(this);
 136     event.SetInt(Get3StateValue());
 137     Command(event);
 138 }
 139
 140 void wxCheckBox::SetLabel(const wxString& s)
 141 {
 142     wxAutoNSAutoreleasePool pool;
 143     [GetNSButton() setTitle:wxNSStringWithWxString(s)];
 144 }
 145 #endif